40JA17H

QD Bushed Sprocket

Item #100804080

2.975 in Outside Diameter

JA Bushing Series

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Product Details

Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.

Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ QD bushings
Stocked Heat Treat

Specifications

Sprocket Style	B
Bushing Type	QD
Overall Length Less Threads	N/A
Outside Dia.	2.975 in
Hub Length	0.34 in
Pitch Diameter	2.7211 in
Martin No.	40JA17H
Chain No.	40
Outside Dia. [Min]	2.975 in
Screw Size	#10-24 UNC
Hub Projection	0.34 in
Bushing Bore [Min]	0.5 in
No. of Teeth	17
Chain Pitch	0.5 in
Width Across Teeth	0.284 in
Single Strand Tooth Thickness	0.284 in
Length Through Bore	0.625 in
Tooth Width	0.284 in
No. of Strands Across	1
Bushing Bore [Max]	1.25 in
Bore Type	Bushed
Bushing Series	JA
Caliper Diameter	2.3975 in
Hub Dia.	2 1/8 in
Inch/Metric	Inch
Hardened Teeth	With Hardened Teeth
Material	Steel
Type	B
Overall Length	0.625 in
Weight	0.48 LB
EAN or UPC	697950041605